listteacher.java

jsp例程

package business;

import hibernate.Teacher;
import dao.*;
import java.util.Iterator;
import java.util.List;


import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspWriter;

public class ListTeacher {
	private TeacherDAO teaDao;

	public TeacherDAO getTeaDao() {
		return teaDao;
	}

	public void setTeaDao(TeacherDAO teaDao) {
		this.teaDao = teaDao;
	}
	
	public void list(HttpServletRequest request,JspWriter out) throws Exception
	{
		String page=(String)request.getParameter("page");
		if(page!=null)
		{
			
		}
	}
    public void listpage(HttpServletRequest request,JspWriter out,int page) throws Exception
    {
    	String name="",id="",password="",title="";
    	List list=teaDao.getTeacher();
    	if(list==null)
    	{
    		out.print("尚无教师信息");
    		return;
    	}
    	int total=list.size();
    	int count=0;
    	Iterator it=list.iterator();
    	Teacher tea;
    	while(count<(page-1)*5 && it.hasNext())
    	{
    		it.next();
    		count++;
    	}
    	count=0;
    	while(it.hasNext() && count<5)
    	{
    		tea=(Teacher)it.next();
    		id=tea.getId();
    		name=tea.getName();
    		password=tea.getPassword();
    		title=tea.getTitle();
    		out.print("<tr><td>"+id+"</td><td>"+name+"</td><td>"+title+"</td><td>"+password+"</td><td>");
    		out.print("<a href=deleteteacher.do?Teacher_id="+tea.getId()+">删除</a></td>");
    		out.print("<td><a href=updatetea.jsp?Teacher_id="+tea.getId()+">编辑</a></td></tr>");
    		count++;
    	}
    	
    	out.print("<tr><td colspan=5 align=center>");
    	out.print("<table width=50% border=0 cellspacing=0><tr>");
    	if((page-1)>0)
    	{
    		out.print("<td width=50% colspan='5'><a href=getteacher.jsp?page="+(page-1)+">上一页</a> &nbsp;&nbsp;&nbsp;");
    		
    	}
    	if((page-1)<(total/5))
    	{
    		out.print("<td width=50% colspan='5'><a href=getteacher.jsp?page="+(page+1)+">下一页</a></td>");
    	}
    	//out.print();
    
    }
}